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Status and Results for COHERENT’s CEvNS Measurement using Germanium

ORAL

Abstract

The COHERENT collaboration operates an array of detectors at the ORNL Spallation Neutron Source (SNS) to measure coherent elastic neutrino-nucleus scattering (CEvNS). COHERENT made the first two measurements of CEvNS in 2017 and 2020 with cesium iodide and argon detector systems respectively. COHERENT has deployed Ge-mini, a new germanium detector system, that will continue our measurements of CEvNS cross section in different nuclei targets. This detector system will have the lowest energy threshold of any CEvNS detection so far with a medium number of neutrons. Ge-mini uses a set of inverted coaxial p-type point contact germanium detectors which have been characterized to assess their performance and capability of measuring CEvNS. This talk will present an overview of our detector-systems performance, and the current status of our CEvNS data taking from the Summer 2023 SNS beam period.

Presenters

  • JAMES L BROWNING

    North Carolina State University

Authors

  • JAMES L BROWNING

    North Carolina State University